MIT and Cambridge police responded to a report of a gunman with a long rifle and body armor at 77 Massachusetts Avenue at 7:30 a.m. Saturday. The tip said that the gunman was going after L. Rafael Reif in retaliation for Aaron Swartz’s death. The report was later determined to be a hoax after police finished searching room-to-room in MIT’s Main Group Buildings. Students were first notified of the situation over an hour after police began closing off the area.